If 4x + 7 = 3... then x must equal -1
4x + 7 = 6x -7 14=2x so x = 7 (plus a negative # is simply - that number)
4x - 7 = 5 + 7x x = -4
X=2
x + 5 + 3x - 7 + 9x + 3 - 4x Switch the like numbers closer to make the equation easier. x + 3x + 9x - 4x + 5 - 7 + 3 However this is an unsolvable as it isn't an equation. An equation needs an equals sign, for example: x + 3x + 9x - 4x + 5 - 7 + 3 = 0, or x + 3x + 9x - 4x + 5 - 7 + 3 = 10 If it is the former then the answer is 9x = -1 Thus x = -1/9
If 4x + 7 = 3... then x must equal -1
= 3
5+4x-7 = 4x+3-x 4x-2 = 3x+3 4x-3x = 3+2 x = 5
7
12 + 7 = 4x - 312 + 7 + 3 = 4x22 = 4x22/4 = xx = 5.5
x^2+4x+7
4x plus 7 plus 3x equals 19 plus xx = 2
-4x +5x +4 =7 x + 4 = 7 x = 3
4x - 3 - 5x + 7 = 6 4x - 5x = 3 - 7 + 6 -1x = 2 x = -2
x=3 That wasn't hard at all. 5x-10=-7+4x -4x -4x _____________ x-10=-7 +10 +10 _____________ x=3
4x - 3y = -7 Change all signs: -4x + 3y = 7 Add 4x to both sides: 3y = 4x + 7 Divide both sides by 3: y = (4/3)*x + 7/3 m = 4/3, b = 7/3
If: 5x = 4x+7 Then: 5x-4x = 7 And: x = 7